package com.shangpin.netty.client.chapter04.linebased;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TimeClientHandler extends ChannelHandlerAdapter {
	private static final Logger logger = LoggerFactory
			.getLogger(TimeClientHandler.class);

	private int counter;
	private byte[] req;

	public TimeClientHandler() {
		req = ("QUERY TIME ORDER" + System.getProperty("line.separator"))
				.getBytes();
	}

	@Override
	public void channelActive(ChannelHandlerContext ctx) throws Exception {
		ByteBuf message = null;
		for (int i = 0; i < 100; i++) {
			message = Unpooled.buffer(req.length);
			message.writeBytes(req);
			ctx.writeAndFlush(message);
		}
	}

	@Override
	public void channelRead(ChannelHandlerContext ctx, Object msg)
			throws Exception {
		String body = (String) msg;
		System.out.println("Now is : " + body + " ; the counter is : "
				+ ++counter);
	}

	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
			throws Exception {
		// 释放资源
		logger.warn("Unexpected exception form downstream : "
				+ cause.getMessage());
		ctx.close();
	}
}
